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-rw-r--r--checker/modops.ml1
1 files changed, 1 insertions, 0 deletions
diff --git a/checker/modops.ml b/checker/modops.ml
index 27ea4d55..498bd775 100644
--- a/checker/modops.ml
+++ b/checker/modops.ml
@@ -125,6 +125,7 @@ let strengthen_mind env mp l mib = match mib.mind_equiv with
let rec eval_struct env = function
| SEBident mp ->
begin
+ let mp = scrape_alias mp env in
let mtb =lookup_modtype mp env in
match mtb.typ_expr,mtb.typ_strength with
mtb,None -> eval_struct env mtb